Gas-engine.



W. LYON.

GAS ENGINE.

APPLIOATION FILED 110117, 1909.

Patented June '2', 1916.

awe Mo? ail o'awi s D. W. LYON.

GAS ENGINE.

APPLICATION FILED NOV. 17, 1909.

960,978. Patented June 7,1910.

3 SHEETS-SHEET 2.

D. W. LYON GAS ENGINE.

APPLIOATION FILED NOV.17, 1909.

960,978, Patented June 7,1910.

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0 and it 1. 1, 1e "pleat cylir endnf Hm VIM-11 is 115m. shaft 4- ismountm l f tomatically upon the movement of the piston 29 to draw in acharge of gasolene or other fuel. One end of the pump is connected to agasolene supply pipe 32 which in turn is connected to a tank or othersource of supply. The opposite end of the pump 30 is connected by adischarge pipe 33 to an annular fuel receiving passage 34: formed in thefuel injecting plug 21, as'shown. In the plug 21 is formed a series ofneedle injecting'passages 35, through which the gasolene or other fuelis injected into the cylinder 1 when the valve 19 opens under pressureof the air in the cylinder 15.

When the valve 19 is thus opened,- the compressed air in the cylinder15- rushes through the inlet opening into the injecting plug 21 andcoming in contact with the gasolene discharging from the passagesthoroughly commingles with and vaporizes the gasolene and forms a richgas which, upon entering the main cylinder 1, mixes with the free air inthe cylinder in such proportion as to cause a perfect combustion whenignited by the sparking mechanism.

The outer end of the rocker arm 26 is connected to an operating rod 36which is slidably mounted in a guide bracket 37 and is connected at itslower end to a slotted yoke 38 which engages the adjacent end of thecrank shaft 4. In the upper portion of the yoke 38, is revolubly mounteda bearing roller 39, with which is engaged a cam 40 fixedly mounted onthe shaft 4, as shown.

()n the operating rod 36, between the bracket 37 and a stop collar ll,is arranged a coiled retracting spring 42, the pressure of which isexerted to retract the operating rod after the same has been projectedby the cam it). By thus connecting the rocke arm 20 with the cam 40,said arm will be rocked and caused to operate the fuel pump 30 and tosimultaneously compress the air in the cylinder 15. lhe cam 40 on theshaft 4 is so timed that the rocker arm will force the piston 16 to thepoint where the air in the cylinder 15 is compressed to a sullicientextent to force the valve 19 open and thus admit fuel to the maincylinder 1 after the piston T therein has moved upwardly far enough toclose the exhaust passage so that none of the fuel, thus admitted, canescape. through the exhaust passage. By this arrangement, the entirecharge of fuel is retained and mixed with the free air which has beenpreviously forced into the upper end of the cylinder 1 by the piston 7.

The engine is provided with the usual or any suitable sparkii'igmechanism whereby the charge of fuel in the main cylinder is ignited atthe proper time.

From the foregoing descriptimi, taken in connection with theaccoi'npanying draw- 'ings, the construction and operation of theinvention will be readily understodd without requiring a more extendedexplanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention, defined in theappended claims.

Having thus described my invention, what I claim is:

1. In a gas engine, a main cylinder having an exhaust passage, a pistonslidably mounted therein, and adapted to open and close said exhaustpas-age, an air tight crank chamber connected with said main cylinder,at valved piston arranged in said main cylinder and adapted to open andclose the exhanst passage therein, an air compressing cylinderarral'iged on .said main cylinder, a fuel inlet valve arranged betweensaid air compressing and said main cylinders, 21 valved piston in saidair compressing cylinder, a fuel injecting pump connected With the maincylinder, and means operated by the crank shaft of the engine tosimultaneously operate said fuel pump and said air compressing piston,and timed to open the fuel inlet valve when the piston has closed theexhaust passage- In a gas engine, a main cylinder having formed thereinan annular exhaust passage, an air tight crank chamber connected to thelower end of said cylinder, an air inlet valve in said chamber, a pistonin said main cylinder adapted to open and close the discharge passagetherein, an air inlet valve in said piston whereby the air drawn intosaid chamber is forced into said main cylinder, and caused to drive theburned gases therefrom,'aii air compressing cylinder arranged on saidmain cylinder and communicating therewith, a fuel injecting plugarranged in the opening between said cylindcrs. a fuel inlet valve toopen and close said opening, an air compressing pistonin said aircylinder, a fuel pump communicate ing with said fuel injecting plug, arocker arm connected with said piston and with v aid fuel pump, a springretracted operating rod connected with said rocker arm, and a camarranged on said crank shaft to project said operating rod at the propertime for simultaneously operating said fuel pump and piston whereby thefuel is admitted to the main cylinder through the fuel valve after theexhaust passage has been closed.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

DAVID \VALTER LYON.

Witnesses: 1

WVM. A. M rronnnn, M. V. COLLINS.

